13420555 has 8 divisors (see below), whose sum is σ = 16952400. Its totient is φ = 10171296.

The previous prime is 13420541. The next prime is 13420573. The reversal of 13420555 is 55502431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13420555 - 2¹⁹ = 12896267 is a prime.

It is a super-2 number, since 2×13420555² = 360222593016050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70540 + ... + 70729.

It is an arithmetic number, because the mean of its divisors is an integer number (2119050).

Almost surely, 2^13420555 is an apocalyptic number.

13420555 is a deficient number, since it is larger than the sum of its proper divisors (3531845).

13420555 is a wasteful number, since it uses less digits than its factorization.

13420555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141293.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 13420555 is about 3663.4075667335. The cubic root of 13420555 is about 237.6421605040.

Adding to 13420555 its reverse (55502431), we get a palindrome (68922986).

The spelling of 13420555 in words is "thirteen million, four hundred twenty thousand, five hundred fifty-five".